Dear All,
if i'll test a gate valve as per ISO 15848 part 1, is it possible to qualify even globe valves and other valves with the same packing and body/bonnet gasket design?
Alberto
Dear All,
i would ask you if it is possible to use ASTM A487-4C alloy steel at -46°C for 5000 psi
.If not there is other material 60K for -46°c service?
Alberto
In order to certify the equipment (valve+actuator) with SIL level 2, i can show to TUV the two certificates (one for valve & one for actuator) or i need a new certificate of the assembly?
Dear all,
for a gate valve 6"150 exist a solution in which i can use (at the same time) a lantern ring for stem injection and a ARMASEAL 312 graphite packing for ISO FE 15848 class B?
Considering that i cannot split the stem packing
Has anyone know some good handbook, bibliography or essay about new technology of packing seal on valve's stem for low fugitive emission?
i would know more about valve's stem sealing
Good morning,
Exist some standards (like ASME, API) with reference to calculation for valve with elliptical body/bonnet connection..
my problem is that in the elliptic flange it's difficult to consider a bolt circle diameter (instead in the circular b/b connection there are a unic bolt circle...
I need to know if exist a procedure to complete the EVADOC 1-7 of Shell specification 77/300 in the right way. The MESC Spec 77/300D describe the seven EVADOC but don't explain the way to complete and put the correct information in it.
My problem is that every single Shell GSI engineer that...
